DG441BDJ Equivalent & Substitute Parts

Part Overview

The DG441BDJ is a 4-circuit SPST-NC (Single Pole Single Throw - Normally Closed) analog switch IC manufactured by Vishay Siliconix in a 16-DIP package. This component features 80Ohm on-state resistance and operates across a wide supply voltage range (13V ~ 36V single supply, ±7V ~ 22V dual supply). The DG441BDJ is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production support. Substitute parts must maintain functional compatibility through matching switch topology, circuit count, package type, and critical electrical parameters.

Key Parameters

Parameter	DG441BDJ
Switch Circuit	SPST - NC
Number of Circuits	4
Multiplexer/Demultiplexer Circuit	1:1
On-State Resistance (Max)	80Ohm
Channel-to-Channel Matching (ΔRon)	2Ohm
Voltage - Supply, Single (V+)	13V ~ 36V
Voltage - Supply, Dual (V±)	±7V ~ 22V
Switch Time (Ton, Toff) (Max)	220ns, 120ns
Charge Injection	-1pC
Channel Capacitance (CS(off), CD(off))	4pF, 4pF
Current - Leakage (IS(off)) (Max)	500pA
Crosstalk	-95dB @ 100kHz
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	16-DIP (0.300", 7.62mm)
Mounting Type	Through Hole
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the DG441BDJ is determined by strict adherence to the following mandatory parameters:

Switch Topology: SPST - NC (Single Pole Single Throw - Normally Closed)
Circuit Count: 4 independent circuits
Multiplexer Configuration: 1:1
Package Type: 16-DIP (0.300", 7.62mm) through-hole
On-State Resistance Range: 70Ohm to 85Ohm (within acceptable tolerance for analog switch applications)
Supply Voltage Compatibility: Must support either single supply (12V ~ 36V) or dual supply (±5V ~ 22V) ranges that overlap with the original specification
Operating Temperature: -40°C ~ 85°C (TA)
Compliance: ROHS3 Compliant, MSL 1

Substitute parts are grouped based on on-state resistance values and supply voltage ranges. Parts with significantly different resistance values (135Ohm, 160Ohm) or incompatible temperature ranges are identified as limited-use alternatives requiring application-specific validation.

Parameter Comparison

Parameter	DG441BDJ (Vishay)	ADG441BNZ (Analog Devices)	ALD4211PCL (Advanced Linear)	DG441DJZ (Renesas)	HI3-0201-5Z (Renesas)	MAX4511CPE+ (Analog Devices/Maxim)
Switch Circuit	SPST - NC	SPST - NC	SPST - NC	SPST - NC	SPST - NC	SPST - NC
Number of Circuits	4	4	4	4	4	4
On-State Resistance (Max)	80Ohm	70Ohm	135Ohm	85Ohm	80Ohm	160Ohm
Voltage - Supply, Single (V+)	13V ~ 36V	12V	3V ~ 12V	5V ~ 34V	-	9V ~ 36V
Voltage - Supply, Dual (V±)	±7V ~ 22V	±15V	±1.5V ~ 6V	±5V ~ 22V	±15V	±4.5V ~ 18V
Switch Time (Ton, Toff) (Max)	220ns, 120ns	110ns, 60ns	130ns, 130ns	250ns, 120ns	240ns, 500ns (Typ)	500ns, 400ns
Charge Injection	-1pC	1pC	0.2pC	-1pC	-	1.5pC
Channel Capacitance (CS(off), CD(off))	4pF, 4pF	4pF, 4pF	3pF, 3pF	4pF, 4pF	5.5pF, 5.5pF	10pF, 5pF
Current - Leakage (IS(off)) (Max)	500pA	500pA	100pA	500pA	500nA	500pA
Operating Temperature	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	0°C ~ 75°C (TA)	0°C ~ 70°C (TA)
Package / Case	16-DIP (0.300", 7.62mm)	16-DIP (0.300", 7.62mm)	16-DIP (0.300", 7.62mm)	16-DIP (0.300", 7.62mm)	16-DIP (0.300", 7.62mm)	16-DIP (0.300", 7.62mm)
Product Status	Obsolete	Active	Active	Active	Active	Obsolete
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitutes (Recommended for Direct Replacement)

ADG441BNZ (Analog Devices Inc.) and DG441DJZ (Renesas Electronics Corporation) are the preferred substitutes for the DG441BDJ. Both parts maintain active product status, ensuring long-term availability and supply chain stability. ADG441BNZ offers superior switching performance (110ns/60ns vs. 220ns/120ns) with a lower on-state resistance of 70Ohm, making it suitable for applications requiring faster switching and lower signal attenuation. DG441DJZ provides near-identical electrical characteristics (85Ohm resistance, -1pC charge injection) with extended single-supply voltage range (5V ~ 34V), offering greater design flexibility. Both parts are ROHS3 compliant with MSL 1 rating and support the full -40°C ~ 85°C operating temperature range.

Secondary Substitutes (Application-Dependent)

HI3-0201-5Z (Renesas Electronics Corporation) maintains matching on-state resistance (80Ohm) and package compatibility but operates within a narrower temperature range (0°C ~ 75°C). This part is suitable for applications not requiring full -40°C operation. Supply voltage is limited to dual supply (±15V), restricting use in single-supply designs.

ALD4211PCL (Advanced Linear Devices Inc.) is an active product with superior leakage current performance (100pA vs. 500pA) and lower channel capacitance (3pF vs. 4pF), beneficial for low-power and high-frequency applications. However, the higher on-state resistance (135Ohm) and limited single-supply range (3V ~ 12V) restrict its use to low-voltage designs.

Not Recommended

MAX4511CPE+ (Analog Devices Inc./Maxim Integrated) is classified as obsolete with significantly higher on-state resistance (160Ohm), reduced crosstalk performance (-66dB @ 1MHz), and narrower operating temperature range (0°C ~ 70°C). This part should not be selected for new designs.

Frequently Asked Questions (FAQ)

Q: Can ADG441BNZ directly replace DG441BDJ in all applications?

A: ADG441BNZ is functionally compatible for most applications due to matching switch topology, circuit count, package type, and operating temperature range. The lower on-state resistance (70Ohm vs. 80Ohm) and faster switching times (110ns/60ns vs. 220ns/120ns) provide performance improvements. However, applications with strict supply voltage requirements must verify that ADG441BNZ's single supply specification (12V) and dual supply specification (±15V) meet design constraints. The DG441BDJ supports 13V ~ 36V single supply and ±7V ~ 22V dual supply.

Q: What is the difference between DG441DJZ and DG441BDJ?

A: Both parts share the same base product number (DG441) and maintain identical switch topology, circuit count, and package type. DG441DJZ is the active production equivalent manufactured by Renesas Electronics Corporation. Key differences include: DG441DJZ has active product status (vs. obsolete), supports extended single-supply range (5V ~ 34V vs. 13V ~ 36V), and offers slightly higher on-state resistance (85Ohm vs. 80Ohm). The DG441DJZ is the recommended replacement for obsolete DG441BDJ inventory.

Q: Why does ALD4211PCL have higher on-state resistance?

A: ALD4211PCL is designed for low-voltage applications (3V ~ 12V single supply, ±1.5V ~ 6V dual supply) and achieves superior leakage current performance (100pA vs. 500pA). The higher on-state resistance (135Ohm) is a design trade-off inherent to this voltage class. Selection of ALD4211PCL requires application-specific validation to confirm that the higher resistance does not exceed signal attenuation limits.

Q: Is HI3-0201-5Z suitable for industrial temperature range applications?

A: No. HI3-0201-5Z operates within 0°C ~ 75°C (TA), which does not meet the full industrial temperature range (-40°C ~ 85°C) of the DG441BDJ. Applications requiring -40°C operation must use ADG441BNZ or DG441DJZ.

Q: Are all substitute parts available in the same packaging?

A: Yes. All substitute parts listed are available in 16-DIP (0.300", 7.62mm) through-hole packages, ensuring direct PCB compatibility with DG441BDJ designs. No layout modifications are required for package substitution.

Q: What compliance certifications apply to substitute parts?

A: All substitute parts are ROHS3 compliant with Moisture Sensitivity Level (MSL) 1 (Unlimited), matching the DG441BDJ compliance profile. All parts are classified as REACH Unaffected and carry EAR99 export classification.

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